The number of private defined benefit (DB) pension plans, an important source of retirement income for millions of Americans, has declined substantially over the past two decades. Although this decline has been concentrated among smaller plans, there is a concern that large DB plans covering many participants have modified, reduced, or otherwise frozen plan benefits in recent years. This report examines: (1) what changes employers have made to their pension and benefit offerings, including to their DB contribution plans and health offerings over the last 10 years or so; and (2) what changes employers might make with respect to their pensions in the future, and how these changes might be influenced by changes in pension law and other factors. Illus.